Best For Skin Types
All, Dry, Sensitive
Addresses
Usage Frequency
Daily
What Is Hydrolyzed Sclerotium Gum?
Hydrolyzed Sclerotium Gum is a polysaccharide derived from sclerotium, a hardened mass of mycelium produced by certain fungi. Through hydrolysis, the polymer chains are broken down into smaller, more soluble fragments that can be incorporated into skincare formulations.
In cosmetics, it functions primarily as a film-former and humectant. This means it can create a protective layer on the skin surface whilst also drawing moisture from the environment into the outer layers of the epidermis, supporting hydration and barrier function.
How It Works
Hydrolyzed Sclerotium Gum works through two complementary mechanisms. As a humectant, its molecular structure allows it to bind water molecules and draw them towards the skin, improving the hydration status of the stratum corneum. Simultaneously, it deposits a thin, flexible film on the skin surface that acts as a protective barrier, slowing water evaporation without completely occluding the skin.
This dual action makes it particularly useful in formulations designed to support skin hydration and barrier integrity, especially for those seeking lightweight moisturisation.
Clinical Evidence & References
Published clinical data specifically on Hydrolyzed Sclerotium Gum remains limited in peer-reviewed literature. However, polysaccharide film-formers and humectants of this type have been studied in dermatological research and generally demonstrate efficacy in improving skin hydration and barrier function when tested in appropriate concentrations.
Most evidence for this ingredient comes from stability and cosmetic performance testing rather than controlled clinical trials. If you are considering products containing this ingredient for a specific skin concern, the formulation as a whole—and the synergy of multiple ingredients—will often be more meaningful than the individual component alone.
How to Use
Hydrolyzed Sclerotium Gum is typically used as a supporting ingredient rather than a standalone treatment. It is usually applied as part of a serum, moisturiser or hydrating mask. Apply to clean skin, either alone or before your regular moisturiser, and allow it to absorb fully. It works well in layered routines and can be combined with other humectants or emollients to enhance hydration.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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Hydrolyzed Keratin
A broken-down protein that conditions skin and helps products bind moisture
Hydrolyzed Nettle Leaf Extract
Plant-derived humectant and conditioning agent from nettle leaf
Hydrolyzed Phyllostachys Bambusoides
A plant-derived humectant that helps skin retain moisture
Hydrolyzed Silk
Animal-derived byproduct from silkworm cocoons
Hydrolyzed Sodium Hyaluronate
Sodium hyaluronate that has gone through the process of hydrolysis Lower molecular weight than sodium hyaluronate (whose molecular weight is lower than hyaluronic acid)
Hydrolyzed Tremella Fuciformis Polysaccharide
A plant-derived humectant that draws moisture into the skin and supports hydration
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